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  1. Article: Spider traps amphibian in northeastern Madagascar.

    Fulgence, Thio Rosin / Martin, Dominic Andreas / Kreft, Holger / Ratsoavina, Fanomezana Mihaja / Andrianarimisa, Aristide

    Ecology and evolution

    2020  Volume 11, Issue 2, Page(s) 682–687

    Abstract: Predation can take unexpected turns. For instance, various invertebrate species-most commonly spiders-may prey on vertebrates. Here, we report one observation of a spider (Sparassidae, ...

    Abstract Predation can take unexpected turns. For instance, various invertebrate species-most commonly spiders-may prey on vertebrates. Here, we report one observation of a spider (Sparassidae,
    Language English
    Publishing date 2020-12-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2635675-2
    ISSN 2045-7758
    ISSN 2045-7758
    DOI 10.1002/ece3.7102
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Listening to a changing landscape: Acoustic indices reflect bird species richness and plot-scale vegetation structure across different land-use types in north-eastern Madagascar

    Dröge, Saskia / Martin, Dominic Andreas / Andriafanomezantsoa, Rouvah / Burivalova, Zuzana / Fulgence, Thio Rosin / Osen, Kristina / Rakotomalala, Eric / Schwab, Dominik / Wurz, Annemarie / Richter, Torsten / Kreft, Holger

    Ecological indicators. 2021 Jan., v. 120

    2021  

    Abstract: New technologies like ecoacoustic surveys promise time and cost efficiency for biodiversity assessments, serve as a basis for effective conservation policies, and are particularly appealing for remote and highly diverse tropical areas. Acoustic indices ... ...

    Abstract New technologies like ecoacoustic surveys promise time and cost efficiency for biodiversity assessments, serve as a basis for effective conservation policies, and are particularly appealing for remote and highly diverse tropical areas. Acoustic indices facilitate the analysis of large acoustic datasets but no consensus on their performance has been reached yet. We evaluated the efficacy of four acoustic indices (Acoustic Complexity Index, Acoustic Diversity Index, Acoustic Evenness Index, Acoustic Entropy) for sound data analysis and biodiversity assessments inside a national park and the agricultural mosaic landscape of north-eastern Madagascar, a global biodiversity hotspot. We used self-built sound recorders to continuously record soundscapes on 80plots across seven land-use types (old-growth forest, forest fragment, forest–derived and fallow-derived vanilla agroforest, herbaceous and woody fallow, rice paddy) and compared index values between land–use types, assessed the correlation with bird species richness as measured by point counts, and related the acoustic indices to plot- and landscape-scale parameters. The Acoustic Diversity Index, Acoustic Evenness Index (inverse) and Acoustic Entropy were highest in old-growth forest and lowest for rice paddies and fallow land. Index values for structurally similar land-use types did not differ significantly from each other. The correlation of the three acoustic indices with bird species richness was strongest during daytime (R2≥0.30). Differences in the index values were best explained by land-use type and vegetation density. Our results showed that all investigated indices except the Acoustic Complexity Index were suitable biodiversity indicators for a tropical, agricultural landscape. Soundscape diversity was positively affected by plot-scale vegetation structure, emphasizing the importance of forests and particularly old-growth forest for conservation. We demonstrated that acoustic indices and sound recordings are a useful tool for assessing biodiversity in tropical agricultural mosaic landscapes. To realize the full potential of ecoacoustics in conservation, sampling guidelines and user-friendly analysis packages will be key to facilitate a wider implementation.
    Keywords acoustics ; agricultural landscapes ; agroforestry ; birds ; cost effectiveness ; data collection ; entropy ; fallow ; habitat fragmentation ; land use ; national parks ; old-growth forests ; paddies ; rice ; species richness ; vegetation structure ; Madagascar
    Language English
    Dates of publication 2021-01
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2036774-0
    ISSN 1872-7034 ; 1470-160X
    ISSN (online) 1872-7034
    ISSN 1470-160X
    DOI 10.1016/j.ecolind.2020.106929
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 7436: Show issues

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  3. Article ; Online: Win-win opportunities combining high yields with high multi-taxa biodiversity in tropical agroforestry.

    Wurz, Annemarie / Tscharntke, Teja / Martin, Dominic Andreas / Osen, Kristina / Rakotomalala, Anjaharinony A N A / Raveloaritiana, Estelle / Andrianisaina, Fanilo / Dröge, Saskia / Fulgence, Thio Rosin / Soazafy, Marie Rolande / Andriafanomezantsoa, Rouvah / Andrianarimisa, Aristide / Babarezoto, Fenohaja Soavita / Barkmann, Jan / Hänke, Hendrik / Hölscher, Dirk / Kreft, Holger / Rakouth, Bakolimalala / Guerrero-Ramírez, Nathaly R /
    Ranarijaona, Hery Lisy Tiana / Randriamanantena, Romual / Ratsoavina, Fanomezana Mihaja / Raveloson Ravaomanarivo, Lala Harivelo / Grass, Ingo

    Nature communications

    2022  Volume 13, Issue 1, Page(s) 4127

    Abstract: Resolving ecological-economic trade-offs between biodiversity and yields is a key challenge when addressing the biodiversity crisis in tropical agricultural landscapes. Here, we focused on the relation between seven different taxa (trees, herbaceous ... ...

    Abstract Resolving ecological-economic trade-offs between biodiversity and yields is a key challenge when addressing the biodiversity crisis in tropical agricultural landscapes. Here, we focused on the relation between seven different taxa (trees, herbaceous plants, birds, amphibians, reptiles, butterflies, and ants) and yields in vanilla agroforests in Madagascar. Agroforests established in forests supported overall 23% fewer species and 47% fewer endemic species than old-growth forests, and 14% fewer endemic species than forest fragments. In contrast, agroforests established on fallows had overall 12% more species and 38% more endemic species than fallows. While yields increased with vanilla vine density and length, non-yield related variables largely determined biodiversity. Nonetheless, trade-offs existed between yields and butterflies as well as  reptiles. Vanilla yields were generally unrelated to richness of trees, herbaceous plants, birds, amphibians, reptiles, and ants, opening up possibilities for conservation outside of protected areas and restoring degraded land to benefit farmers and biodiversity alike.
    MeSH term(s) Amphibians ; Animals ; Ants ; Biodiversity ; Birds ; Butterflies ; Conservation of Natural Resources ; Forests ; Plants ; Reptiles ; Trees
    Language English
    Publishing date 2022-07-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-022-30866-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Land-use trajectories for sustainable land system transformations: Identifying leverage points in a global biodiversity hotspot.

    Martin, Dominic Andreas / Andrianisaina, Fanilo / Fulgence, Thio Rosin / Osen, Kristina / Rakotomalala, Anjaharinony Andry Ny Aina / Raveloaritiana, Estelle / Soazafy, Marie Rolande / Wurz, Annemarie / Andriafanomezantsoa, Rouvah / Andriamaniraka, Harilala / Andrianarimisa, Aristide / Barkmann, Jan / Dröge, Saskia / Grass, Ingo / Guerrero-Ramirez, Nathaly / Hänke, Hendrik / Hölscher, Dirk / Rakouth, Bakolimalala / Ranarijaona, Hery Lisy Tiana /
    Randriamanantena, Romual / Ratsoavina, Fanomezana Mihaja / Ravaomanarivo, Lala Harivelo Raveloson / Schwab, Dominik / Tscharntke, Teja / Zemp, Delphine Clara / Kreft, Holger

    Proceedings of the National Academy of Sciences of the United States of America

    2022  Volume 119, Issue 7

    Abstract: Sustainable land-system transformations are necessary to avert biodiversity and climate collapse. However, it remains unclear where entry points for transformations exist in complex land systems. Here, we conceptualize land systems along land-use ... ...

    Abstract Sustainable land-system transformations are necessary to avert biodiversity and climate collapse. However, it remains unclear where entry points for transformations exist in complex land systems. Here, we conceptualize land systems along land-use trajectories, which allows us to identify and evaluate leverage points, i.e., entry points on the trajectory where targeted interventions have particular leverage to influence land-use decisions. We apply this framework in the biodiversity hotspot Madagascar. In the northeast, smallholder agriculture results in a land-use trajectory originating in old-growth forests and spanning from forest fragments to shifting hill rice cultivation and vanilla agroforests. Integrating interdisciplinary empirical data on seven taxa, five ecosystem services, and three measures of agricultural productivity, we assess trade-offs and cobenefits of land-use decisions at three leverage points along the trajectory. These trade-offs and cobenefits differ between leverage points: Two leverage points are situated at the conversion of old-growth forests and forest fragments to shifting cultivation and agroforestry, resulting in considerable trade-offs, especially between endemic biodiversity and agricultural productivity. Here, interventions enabling smallholders to conserve forests are necessary. This is urgent since ongoing forest loss threatens to eliminate these leverage points due to path dependency. The third leverage point allows for the restoration of land under shifting cultivation through vanilla agroforests and offers cobenefits between restoration goals and agricultural productivity. The co-occurring leverage points highlight that conservation and restoration are simultaneously necessary to avert collapse of multifunctional mosaic landscapes. Methodologically, the framework highlights the importance of considering path dependency along trajectories to achieve sustainable land-system transformations.
    MeSH term(s) Agriculture ; Animals ; Biodiversity ; Conservation of Natural Resources/methods ; Forestry ; Humans ; Madagascar ; Models, Biological
    Language English
    Publishing date 2022-02-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.2107747119
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1148: Show issues Location:
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    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
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